| All Patents in class 123/51B |
Patents 1 -
10
of 27
      |
| Picture | Number | Date | Patentee | Title |
| | 213,539 | Mar. 25, 1879 | W. Hees, W. Wittig | Gas-Engine |
 | 270,203 | Jan. 09, 1883 | J. Charter | Gas Engine |
| | 292,894 | Feb. 05, 1884 | J. Charter | Gas Engine |
| | 315,808 | Apr. 14, 1885 | T. McDonough | Gas Engine |
 | 335,564 | Feb. 09, 1886 | J. Charter | Gas Engine |
| | 432,638 | Jul. 22, 1890 | G. McGhee | Gas Motor Engine |
| | 441,028 | Nov. 18, 1890 | W.S. Sharpneck | Gas Engine |
| | 461,802 | Oct. 20, 1891 | P.C. Sainsevain | Gas or Gasoline Vapor Engine |
| | 497,239 | May 09, 1893 | W.W. Grant | Gas Engine |
| | 508,833 | Nov. 14, 1893 | H. Junkers, W. Von Oechelhaeurser | Gas Engine |
